diff --git a/addons/l10n_ch/__manifest__.py b/addons/l10n_ch/__manifest__.py
index f5d3be898cb..ef172d008bb 100644
--- a/addons/l10n_ch/__manifest__.py
+++ b/addons/l10n_ch/__manifest__.py
@@ -19,7 +19,7 @@ A QR-bill will be generated if:
 The generation of the QR-bill is automatic if you meet the previous criteria. The QR-bill will be appended after the invoice when printing or sending by mail. 
 
     """,
-    'version': '11.1',
+    'version': '11.2',
     'category': 'Accounting/Localizations/Account Charts',
     'depends': [
         'account',
diff --git a/addons/l10n_ch/migrations/11.2/pre-migrate.py b/addons/l10n_ch/migrations/11.2/pre-migrate.py
new file mode 100644
index 00000000000..d8c92761b81
--- /dev/null
+++ b/addons/l10n_ch/migrations/11.2/pre-migrate.py
@@ -0,0 +1,13 @@
+# -*- coding: utf-8 -*-
+
+
+def migrate(cr, version):
+    cr.execute("SELECT res_id FROM ir_model_data WHERE module = 'l10n_ch' AND name='account_tax_report_line_chtax_solde_formula'")
+
+    expression_id = cr.fetchone()
+
+    if expression_id:
+        cr.execute(
+            "DELETE FROM account_report_external_value WHERE target_report_expression_id = %s",
+            [expression_id[0]]
+        )